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            <h2 class="title" style="clear: both"><a id="dbset_message_stream"></a>Db::set_message_stream()</h2>
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      <pre class="programlisting">#include &lt;db_cxx.h&gt;

void Db::set_message_stream(class ostream*); </pre>
      <p>
            There are interfaces in the Berkeley DB library which either
            directly output informational messages or statistical
            information, or configure the library to output such messages
            when performing other operations. For example, the
            <a class="xref" href="envset_verbose.html" title="DbEnv::set_verbose()">DbEnv::set_verbose()</a>
            and <a class="xref" href="envstat.html" title="DbEnv::stat_print()">DbEnv::stat_print()</a>
            methods.
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        The <a class="xref" href="envset_message_stream.html" title="DbEnv::set_message_stream()">DbEnv::set_message_stream()</a>  
        and <code class="methodname">Db::set_message_stream()</code> methods are used
        to display these messages for the application. In this case, the message will include a
        trailing <code class="literal">&lt;newline&gt;</code> character.
    </p>
      <p>
            Setting <span class="bold"><strong>stream</strong></span> to NULL unconfigures the interface.
    </p>
      <p>
            Alternatively, you can use the
            <a class="xref" href="envset_msgfile.html" title="DbEnv::set_msgfile()">DbEnv::set_msgfile()</a> or
            <a class="xref" href="dbset_msgfile.html" title="Db::set_msgfile()">Db::set_msgfile()</a> methods
            to display the additional information via a C Library <code class="literal">FILE *</code>,
            or the <a class="xref" href="envset_msgcall.html" title="DbEnv::set_msgcall()">DbEnv::set_msgcall()</a> 
            and <a class="xref" href="dbset_msgcall.html" title="Db::set_msgcall()">Db::set_msgcall()</a>
            methods to capture the additional error information in a way that does not use either
            output streams or C Library <code class="literal">FILE *</code>'s.
            You should not mix these approaches.
    </p>
      <p>
            For <a class="link" href="db.html" title="Chapter 2.  The Db Handle">Db</a> handles opened inside of Berkeley DB
            environments, calling the <code class="methodname">Db::set_message_stream()</code> method 
            affects the entire environment and is equivalent to calling the 
            <a class="xref" href="envset_message_stream.html" title="DbEnv::set_message_stream()">DbEnv::set_message_stream()</a> method.
    </p>
      <p>
            The <code class="methodname">Db::set_message_stream()</code> method configures 
            operations performed using the specified 
            <a class="link" href="db.html" title="Chapter 2.  The Db Handle">Db</a>
            handle, not all operations performed on the underlying database.
    </p>
      <p>
         The <code class="methodname">Db::set_message_stream()</code> method may be called at any time during the
         life of the application.
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      <div class="sect2" lang="en" xml:lang="en">
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              <h3 class="title"><a id="idp5711224"></a>Parameters</h3>
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        <div class="sect3" lang="en" xml:lang="en">
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                <h4 class="title"><a id="idp5711416"></a>stream</h4>
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          <p>
                             The <span class="bold"><strong>stream</strong></span> parameter is the
                             application-specified output stream to be used for additional message
                             information.
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              <h3 class="title"><a id="idp5675544"></a>Class</h3>
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        <p>
                <a class="link" href="db.html" title="Chapter 2.  The Db Handle">Db</a>  
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      <div class="sect2" lang="en" xml:lang="en">
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              <h3 class="title"><a id="idp5706408"></a>See Also</h3>
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        <p>
                     <a class="xref" href="db.html#dblist" title="Database and Related Methods">Database and Related Methods</a> 
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